Shingle shaving and rifting machine



I (No-Model")? l .A. GOULD.

SHINGLE SHAVING AND RIPTING' MACHINE; N0. 295,54l. Patented Mar. 25,1884.

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N. PETERS. Phclo-L'rlhugnpiwr. Washington D. C

U NI-TED STATES PATENT OFFICE.

APPLETON counn, or BANGOR, MAINE.

SHINGLE SHAVING AND RIFTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 295,541, dated March25, 1884.

Application filed March 8.1883. (R0 model.)

and use the same, reference being had to the accompanying drawings,forming a part of this specification, in which- Figure 1 shows anelevation of my inven tion, one side of the frame and drive-casingremoved; Fig. 2, a plan, top of easing removed and the slats forming oneof the shingle-rift rests omitted. I Same letters show like parts.

My invention consists of an improved shingle shaving and riftingmachine, capable of easy transportation and use on the ground where theshingle-rifts are out, if desired, and

embodying many other advantages, which will appear more fully as Idescribe my invention by reference to the drawings annexed.

' At a is shown a frame of proper strength and construction, havinglongitudinal side tracks, b, on the inner side of each side piece.

At 0 is a table or platform shorterthan'the frame, and having tracks orgrooves d on each side, corresponding to those at b and running thereinor thereby.

At 6 is a shaft journaled on the frame a, and carrying a driving-pulleyand balancewheel, f, 011 one end, and a second pulley, g, from whichmotion is communicated to the rifter, on the other. This wheel f gives areciprocating motion to the table. I will now describe one mechanism fordoing this, (to which, however, I do not limit .myself, as others may beemployed to advantage,) which, however, I do not here claim, as it hasalready been secured to me by Letters Patent No. 276,028, dated April17, 1883, to which patent reference is hereby made.

To the table a is bolted a casing, h, which, for convenience indescription, Iwill consider divided by a vertical longitudinal line intotwo parts, h and h. The partition h on the lower half of its bottom (alongitudinal division again being made) has a rack, z, andacorresponding rack, j, upon the opposite half of its top t. Upon itsunder side and into the one or the other of these racks, as the case.may be, meshes a pinion, k, fixed on the shaft 6. This shaft is capableof a longitudinal reciprocating as well as a rotary. motion, obtained asfollows: The second division, h of the casing contains a guide'groove,l, in which runs a collar, m, fixed to the shaft e, the result beingthat as the motion of the shaft through the pinion and rack feedsforward the table, and the curved part of. the guidegroovereaches thecollar, the latter follows the curve of the groove, moving said shaftlongi- 6 tudinally, so as to force the teeth of the pinion out of therack in which they have been meshed andinto' the opposite one, thusreversing the directionin which the table moves, while the motion of thedriving-wheel remains the same. 7

At 42 n on each endof the table are shaving knives, fixed at a properheight above the rift supporting bed, hereinafter to be described.

At 0 care springs attached to the table at one end, and having journaledin their 'opposite ends, just in advance of the knife-edges, pressure-rollers 19 p,- which, as the table moves, press down upon theshingle-rift firmly, 8o 7 but yet with a yielding pressure, so as toadjust themselves to any twist or variation in thickness of the rift.

The bed A, on which the rift rests, is formed as follows: The frame a isprovided at each end with side ledges, q, upon which rest looselycross-pieces m", the end of the frame and a second cross-piece, s,forming a sort of socket to receive the bed. Upon the cross-pieces r rare placed, close together, bars 1, sufficient in 0 number to fill thespace between the side pieces of the frame, the upper surface of the bedA formed thereby being, when in its nor= mal position, just thethickness of the butt of a shingle below the line of cut of the knife at9 5 its inner end and slightly raised at its out end, forming aninclined plane to provide for the taper required. Below each end of thecross-pieces r r are set-screws a u, passing up through the ledges q',and regulating the height :00

,of the cross-pieces and superimposed bed, as desired. It is evidentthat by this means the taper of the shingle may be adjusted or theelevation of the bed at either end or corner fixed at will, thusenabling the machine to work perfectly upon a rift which is twisted orcrooked, the bed itself being so constructed as to allow of adjustmentin any direction. As the outer end of the shingle must be so secured asto resist the pushing action of the knife, I secure barsm to the sidepieces of the frame a at the outer ends of the bed-bars 1, byspring-arms we, said bed-bars being cut away, as shown,'to allow of thedepression of the bars 0. When the shingle-rift is in position and theknife begins to cut, in advancing over and removing the shaving from therift, the table e,which is wider than the knife, acts uponand pressesdown the spring-arms attached to the bars a and the bar itself, so as toregulate its height, while at the same time allowing it to oppose dueresistance to the shingle-rift without interfering with the knifebladeinremoving the shingle. This depressible spring-stop, operated by thereciprocating knife-carrying table, I consider an important part of myinvention.

It is evident that my device would work, even if the shingle-bed weresolid instead of yielding, and the adjustment limited to the regulationof the taper of the shingle-rift; and by my use of the worc adjustablein the subjoined'claims I include a bed adjustable as to itsinclination, as a rigid bed would be; or in any direction within certainlimits, as my bed herein described is. A spring-pressure bar might alsobe substituted for my 5 pressure-rolls without altering the spirit of myinvention.

What I claim as my invention is' 1. The combination of the reciprocatingknife-bearing table, self-adjusting pressurerolls, and end bar, 1),supported upon springarms w, said bar extending across the end of theshingle-bed beyond said bed, and operating to resist the pushing actionof the shingle shaving knife by serving as a rest for the point of theshingle, and depressible by the advancing reciprocating table,substantially as set forth. and described.

2. The combination ofv the reciprocating, knifebearing table, self-adjusting pressurerolls, spring end' bars extending across theshingle-bed beyond its end and serving as a rest for the shingle-point,and adjustable shingle-bed, as set forth.

3. The shingle-bed formed from separate bars unattached to andindependent of each other, as described,'and capable of adj ustment indifferent planes, substantially asset forth, in combination withmechanism whereby said adjustment may be effected.

In testimony that I claim the foregoing I have hereunto set my hand this3d day of March, 1883.

APPLETON GOULD.

Witn esses:

J. B. B. FIsKE, WM. FRANKLIN SEAVEY.

